CN109855140B - Rotary filter screen control method and device, range hood and readable storage medium - Google Patents
Rotary filter screen control method and device, range hood and readable storage medium Download PDFInfo
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- CN109855140B CN109855140B CN201910179400.6A CN201910179400A CN109855140B CN 109855140 B CN109855140 B CN 109855140B CN 201910179400 A CN201910179400 A CN 201910179400A CN 109855140 B CN109855140 B CN 109855140B
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Abstract
The invention discloses a rotary filter screen control method, a rotary filter screen control device, a range hood and a readable storage medium, wherein the rotary filter screen control method comprises the following steps: acquiring starting parameters for starting the rotation of the rotary filter screen; judging whether the starting parameters meet preset conditions or not; and when the starting parameters meet the preset conditions, controlling the rotary filter screen to rotate. The method controls the rotation of the rotary filter screen when the acquired starting parameters meet the preset conditions by judging whether the acquired starting parameters meet the preset conditions or not, and can also control and adjust the rotating speed of the rotary filter screen when the oil smoke amount or concentration in the environment changes, so that the rotary filter screen does not rotate on line along with the starting of the range hood, the rotating speed of the rotary filter screen can be controlled and adjusted in a self-adaptive manner according to the change of the oil smoke amount or concentration in a kitchen, and therefore the loss is reduced, and energy is saved.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a rotary filter screen control method and device, a range hood and a readable storage medium.
Background
Along with the improvement of the life quality of people, people pay more and more attention to the air quality of the home environment. Because a great deal of oil smoke is generated in the cooking process, the range hood becomes one of important household appliances in a kitchen.
In order to improve the oil-fat separation rate of the range hood, a rotary filter screen is mounted at an air inlet of the range hood for first-time oil-smoke separation, the rotary filter screen is driven by a motor to rotate at a high speed and collides with oil-smoke particles sucked by the air inlet to throw the oil-smoke particles out, the frequency that the rotary filter screen needs to be cleaned due to the fact that a large amount of oil smoke is adhered to the rotary filter screen is reduced, meanwhile, the pollution index of outdoor oil-smoke gas can be effectively reduced, and the range hood is energy-. However, the above-mentioned rotary filter screen and the main motor shaft are used in common, and the rotary filter screen rotates whenever the range hood is started regardless of the actual cooking environment in the kitchen, thereby causing waste of energy.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for controlling a rotating filter screen, a range hood, and a readable storage medium, so as to solve the problem in the prior art that the rotating filter screen rotates when the range hood is started, which causes energy waste.
According to a first aspect, an embodiment of the present invention provides a method for controlling a rotary filter screen, including the following steps: acquiring starting parameters for starting the rotation of the rotary filter screen; judging whether the starting parameters meet preset conditions or not; and when the starting parameters meet the preset conditions, controlling the rotary filter screen to rotate.
Optionally, the starting parameter includes an oil smoke concentration value used for representing the size of oil smoke, and determining whether the starting parameter meets a preset condition includes: and judging whether the oil smoke concentration value is larger than a preset oil smoke concentration value.
Optionally, when the starting parameter meets the preset condition, controlling the rotary filter screen to rotate includes: and when the oil smoke concentration value is greater than a preset oil smoke concentration value, controlling the rotary filter screen to rotate.
Optionally, after the step of controlling the rotation of the rotary filter screen when the starting parameter meets the preset condition, the method further includes: acquiring a lampblack concentration increment value of the lampblack concentration value; judging whether the oil smoke concentration increment value is larger than a preset oil smoke concentration increment value or not; when the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value, controlling the rotary filter screen to increase a preset increment rotating speed value on the basis of the current rotating speed value; and when the oil smoke concentration increment value is smaller than or equal to the preset oil smoke concentration increment value, controlling the rotary filter screen to keep the current rotating speed value, and returning to the step of obtaining the oil smoke concentration increment value.
Optionally, after the step of controlling the rotation of the rotary filter screen when the starting parameter meets the preset condition, the method further includes: acquiring an oil smoke concentration variable value of an oil smoke concentration value; judging whether the oil smoke concentration variable value is within the range of a preset oil smoke concentration variable value; when the oil smoke concentration variable value is within the range of the preset oil smoke concentration variable value, controlling the rotary filter screen to rotate at a preset rotating speed value corresponding to the range; and when the value of the oil smoke concentration variable is not within the range of the preset value of the oil smoke concentration variable, controlling the rotary filter screen to keep the current rotating speed value, and returning to the step of obtaining the value of the oil smoke concentration variable.
Optionally, the starting parameter includes a mode signal for characterizing whether the rotary filter screen enters a rotation speed adjustment mode, and determining whether the starting parameter satisfies a preset condition includes: and judging whether the mode signal indicates that the rotary filter screen is in a rotating speed adjusting mode or not.
Optionally, when the starting parameter meets the preset condition, controlling the rotary filter screen to rotate includes: and when the mode signal indicates a rotating speed adjusting mode, controlling the rotary filter screen to rotate.
Optionally, after the step of controlling the rotation of the rotary filter screen, the method further includes: acquiring a rotating speed adjusting signal of the rotary filter screen; and adjusting the rotating speed of the rotary filter screen according to the rotating speed adjusting signal.
Optionally, after the step of controlling the rotation of the rotary filter screen, the method further includes: acquiring a rotating speed stop signal of the rotary filter screen; and controlling the rotary filter screen to stop rotating according to the rotating speed stop signal.
Optionally, the method further comprises: acquiring a gas pressure value at an air inlet of the rotary filter screen; judging whether the gas pressure value is larger than a preset gas pressure value or not; and when the gas pressure value is greater than the preset gas pressure value, controlling a prompting device to send out prompting information.
According to a second aspect, an embodiment of the present invention provides a rotary filter network control apparatus, including: the first acquisition module is used for acquiring starting parameters for starting the rotation of the rotary filter screen; the first judgment module is used for judging whether the starting parameters meet preset conditions or not; and the first processing module is used for controlling the rotary filter screen to rotate when the starting parameter meets the preset condition.
Optionally, the starting parameter includes an oil smoke concentration value used for representing an oil smoke size, and the first determining module includes: the first judging unit is used for judging whether the oil smoke concentration value is larger than a preset oil smoke concentration value.
Optionally, the starting parameter includes an oil smoke concentration value for characterizing an oil smoke size, and the first processing module includes: and the first processing unit is used for controlling the rotary filter screen to rotate when the oil smoke concentration value is greater than a preset oil smoke concentration value.
Optionally, the starting parameter includes an oil smoke concentration value for characterizing an oil smoke size, and the first processing module further includes: the first acquisition unit is used for acquiring a lampblack concentration increment value of a lampblack concentration value when the lampblack concentration value is larger than the preset lampblack concentration value; the second judgment unit is used for judging whether the oil smoke concentration increment value is larger than a preset oil smoke concentration increment value or not; the second processing unit is used for controlling the rotary filter screen to increase a preset increment rotating speed value on the basis of the current rotating speed value when the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value; and the third processing unit is used for controlling the rotary filter screen to keep the current rotating speed value when the oil smoke concentration increment value is smaller than or equal to the preset oil smoke concentration increment value, and returning to the step of obtaining the oil smoke concentration increment value.
Optionally, the starting parameter includes an oil smoke concentration value for characterizing an oil smoke size, and the first processing module further includes: the second acquisition unit is used for acquiring the value of the oil smoke concentration variable of the oil smoke concentration value; the third judgment unit is used for judging whether the oil smoke concentration variable value is within the range of a preset oil smoke concentration variable value; the fourth processing unit is used for controlling the rotary filter screen to rotate at a preset rotating speed value corresponding to the range when the oil smoke concentration variable value is within the range of the preset oil smoke concentration variable value; and the fifth processing unit is used for controlling the rotary filter screen to keep the current rotating speed value when the oil smoke concentration variable value is not within the range of the preset oil smoke concentration variable value, and returning to the step of acquiring the oil smoke concentration variable value.
Optionally, the starting parameter includes a mode signal for indicating whether the rotary filter screen enters a rotation speed adjustment mode, and the first determining module includes: and the fourth judging unit is used for judging whether the mode signal indicates that the filter screen is in a rotating speed adjusting mode.
Optionally, the starting parameter includes a mode signal for indicating whether the rotary filter screen enters a rotation speed adjustment mode, and the first processing module includes: and the sixth processing unit is used for controlling the rotary filter screen to rotate when the mode signal indicates a rotating speed adjusting mode.
Optionally, the starting parameter includes a mode signal for indicating whether the rotary filter screen enters a rotation speed adjustment mode, and the first processing module further includes: the third acquisition unit is used for acquiring a rotating speed stop signal of the rotary filter screen; and the seventh processing unit is used for controlling the rotary filter screen to stop rotating according to the rotating speed stop signal.
Optionally, the method further comprises: the second acquisition module is used for acquiring a rotating speed stop signal of the rotary filter screen; and the second processing module is used for controlling the rotary filter screen to stop rotating according to the rotating speed stop signal.
Optionally, the method further comprises: the third acquisition module is used for acquiring the gas pressure value at the air inlet of the rotary filter screen; the second judgment module is used for judging whether the gas pressure value is greater than a preset gas pressure value or not; and the third processing module is used for controlling the prompting device to send out prompting information when the gas pressure value is greater than the preset gas pressure value.
According to a third aspect, an embodiment of the present invention provides a range hood, including: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, and the processor executing the computer instructions to perform the rotary screen control method according to any one of the first aspect of the present invention.
According to a fourth aspect, the present invention provides a computer-readable storage medium, which stores computer instructions for causing a computer to execute the rotary filter screen control method according to any one of the first aspect of the present invention.
The invention has the following advantages:
the invention provides a rotary filter screen control method, which comprises the following steps: acquiring starting parameters for starting the rotation of the rotary filter screen; judging whether the starting parameters meet preset conditions or not; and when the starting parameters meet the preset conditions, controlling the rotary filter screen to rotate. The method comprises the steps of judging whether the obtained starting parameters meet preset conditions or not, controlling the rotary filter screen to rotate when the starting parameters meet the preset conditions, starting the rotary filter screen to rotate after the range hood is started and when the oil smoke amount or concentration in the environment reaches a certain degree, and controlling and adjusting the rotating speed of the rotary filter screen when the oil smoke amount or concentration in the environment changes, so that the rotary filter screen does not rotate on line along with the starting of the range hood, the rotating speed of the rotary filter screen can be controlled and adjusted in a self-adaptive mode according to the change of the oil smoke amount or concentration in a kitchen, and therefore loss is reduced, and energy is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a specific example of a rotary filter screen control method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating another exemplary method for controlling a rotary filter according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating another exemplary method for controlling a rotary filter according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating another exemplary method for controlling a rotary filter according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating another exemplary method for controlling a rotary filter according to an embodiment of the present invention;
fig. 6 is a flowchart of another specific example of a rotary filter screen control method according to an embodiment of the present invention;
fig. 7 is an installation diagram of a specific example of a rotary filter in the rotary filter control method according to the embodiment of the present invention;
fig. 8 is a perspective view showing a specific example of the first rotary filter in the rotary filter control method according to the embodiment of the present invention;
FIG. 9 is a front view of one particular example of the first rotary filter screen of FIG. 8;
fig. 10 is a perspective view showing a specific example of the second rotary filter in the rotary filter control method according to the embodiment of the present invention;
FIG. 11 is a front view of one particular example of the second rotary filter screen of FIG. 10;
fig. 12 is a flowchart of another specific example of a rotary filter screen control method in the embodiment of the present invention;
fig. 13 is a flowchart of another specific example of a rotary filter screen control method in the embodiment of the present invention;
fig. 14 is a block diagram of a specific example of a rotary filter network control apparatus according to an embodiment of the present invention;
fig. 15 is a schematic diagram of a hardware structure of a range hood provided in an embodiment of the present invention;
fig. 16 is a perspective view of a specific example of a range hood provided by an embodiment of the present invention;
fig. 17 is a front view of a specific example of a range hood provided by an embodiment of the present invention;
fig. 18 is a side view of a specific example of a range hood provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment provides a control method of a rotary filter screen, which can be applied to a range hood and avoids the problem of energy waste caused by linkage rotation when the range hood is started.
Fig. 1 is a flowchart of a rotary filter screen control method according to an embodiment of the present invention, and as shown in fig. 1, the rotary filter screen control method includes steps S1-S3.
Step S1: and acquiring starting parameters for starting the rotation of the rotary filter screen.
In one embodiment, the start parameter may be an oil smoke concentration value; of course, in other embodiments, the detection parameters may also include other parameters besides the above parameters, such as environmental parameters like temperature values, which are reasonably set as required, and those skilled in the art, according to the description of the embodiment, are within the protection scope of the present invention as long as they can achieve the starting parameters for the purpose of the present invention.
Specifically, after a main motor of the range hood is started, the rotary filter screen is not linked with the rotation of the main motor, and an independent auxiliary motor is arranged on the rotary filter screen and drives the rotary filter screen to rotate independently. This auxiliary motor can be double-shaft motor, and two epaxial respectively install a rotatory filter screen, and two rotatory filter screens make the oil smoke separation effect better. Of course, in other embodiments, other types of motors are also possible, and the present embodiment is not limited in any way.
Step S2: and judging whether the starting parameters meet preset conditions. When the starting parameters meet the preset conditions, executing step S3; when the start-up parameter does not satisfy the preset condition, step S4 is executed.
Step S3: and when the starting parameters meet preset conditions, controlling the rotary filter screen to rotate. Specifically, when the starting parameters meet the preset conditions, the oil smoke in the environment is large, the rotary filter screen needs to rotate to perform efficient separation of the oil smoke, and at the moment, the rotary filter screen is controlled to rotate.
Step S4: and when the starting parameters do not meet the preset conditions, controlling the rotary filter screen to stop rotating. Specifically, when the starting parameter does not meet the preset condition, the oil smoke size in the environment meets the requirement, at the moment, the rotary filter screen does not need to be started to rotate, and the rotary filter screen is controlled to stop rotating so as to reduce energy loss.
According to the rotary filter screen control method, whether the obtained starting parameters meet the preset conditions or not is judged, the rotary filter screen is controlled to rotate when the starting parameters meet the preset conditions, and after the range hood is started, the rotary filter screen is started to rotate after the oil smoke in the environment reaches a certain degree, so that the rotary filter screen does not rotate on line along with the starting of the range hood, and therefore the purposes of reducing loss and saving energy are achieved.
In an embodiment, as shown in fig. 2, when the starting parameter includes an oil smoke concentration value for representing the size of the oil smoke, the step S2 of determining whether the starting parameter satisfies the preset condition specifically includes: and judging whether the oil smoke concentration value is greater than a preset oil smoke concentration value. It should be noted that, the embodiment is only described by taking the parameter oil smoke concentration value as an example, but not limited to this, and the starting parameter may also include other parameters, such as an oil smoke amount, a temperature value, and the like.
In one embodiment, the range of the preset soot concentration value may be 0.5mg/m3－1.5mg/m3Preferably, the preset soot concentration value may be 1.0mg/m3(ii) a Of course, in other embodiments, the preset value of the oil smoke concentration value may be other values, and may be set reasonably according to actual needs.
Specifically, the accessible sets up oil smoke concentration sensor at rotatory filter screen air intake department, and this oil smoke concentration sensor detects the interior oil smoke concentration value of kitchen, and then judges the actual culinary art environment in kitchen. For example, the actual cooking environment may include boiling water, cooking porridge, steaming steamed bread, cooking dishes, etc., and different actual cooking environments have different soot concentration values. Generally, no oil smoke is generated under the condition of water boiling, and only water vapor appears; before cooking, the upper layer of the pot is used for steaming steamed bread and the lower layer of the pot is used for cooking rice porridge, so that oil smoke gas can not be generated; during the process of frying dishes, especially during the frying process, a large amount of oil fume gas is generated.
In an embodiment, as shown in fig. 2, the step S3 further includes steps S31-S34 after the step of controlling the rotation of the rotary filter screen when the start parameter satisfies the preset condition.
Step S31: and when the oil smoke concentration value is greater than the preset oil smoke concentration value, controlling the rotary filter screen to rotate.
In an embodiment, when the oil smoke concentration value is greater than the predetermined oil smoke concentration value, it indicates that the oil smoke in the environment is large, the rotation speed of the rotary filter screen needs to be increased, and different oil smoke concentration ranges can correspond to different rotation speeds, so that an oil smoke concentration increment value of the oil smoke concentration needs to be obtained first.
Specifically, the two soot concentration values obtained in sequence can be differed to obtain a soot concentration increment value; the soot concentration increment value may be a positive value or a negative value. Of course, in other embodiments, the temperature increment value may also be directly detected, and may be set reasonably according to actual needs.
Step S32: and judging whether the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value or not. When the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value, executing step S33; when the soot concentration increase value is less than or equal to the preset soot concentration increase value, step S34 is executed.
In one embodiment, the preset soot concentration increment value may be 0.5mg/m3The present embodiment is only illustrative and not limited thereto.
Step S33: and when the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value, controlling the rotary filter screen to increase the preset increment rotating speed value on the basis of the current rotating speed value. When the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value, the oil smoke concentration is too large, and the rotating speed of the rotary filter screen needs to be increased so as to further increase the oil smoke filtering effect.
In one embodiment, every time the incremental soot concentration value is detected to increase by Δ c, the rotation speed of the auxiliary motor controlling the rotation of the rotary filter screen is increased by Δ W. In the present embodiment, it is specifically possible to detect an increase of 0.5mg/m per increase in concentration3The rotating speed of the auxiliary motor is automatically increased by the rotating speed corresponding to the power of 20 watts, and the increased rotating speed value is the preset increment rotating speed value. It should be noted that the rotation speed of the rotary filter screen is intelligently adjusted in such a way that the larger the power of the auxiliary motor is, the faster the rotation speed is, and the power and the rotation speed have a positive correlation (for example, a direct ratio).
Step S34: and when the oil smoke concentration increment value is smaller than or equal to the preset oil smoke concentration increment value, controlling the rotary filter screen to keep the current rotating speed value, and returning to the step of obtaining the oil smoke concentration increment value. When the oil smoke concentration increment value is smaller than or equal to the preset oil smoke concentration increment value, the current rotating speed value can meet the oil smoke filtering requirement without changing the current rotating speed value.
In another embodiment, as shown in fig. 3, the step S3 further includes steps S35-S38 after the step of controlling the rotation of the rotary filter screen when the start parameter satisfies the preset condition.
Step S35: and acquiring the value of the oil smoke concentration variable of the oil smoke concentration value.
In an embodiment, when the oil smoke concentration value is greater than the predetermined oil smoke concentration variable value, it indicates that the oil smoke in the environment is large, the rotation speed of the rotary filter screen needs to be increased, and different oil smoke concentration ranges can correspond to different rotation speeds, so that the oil smoke concentration variable value of the oil smoke concentration needs to be obtained first.
Specifically, the difference value of two oil smoke concentration values obtained sequentially can be used to obtain an oil smoke concentration variable value; of course, in other embodiments, the temperature variable value can be directly detected and reasonably set according to actual needs.
Step S36: and judging whether the variable value of the oil smoke concentration is within the range of the preset variable value of the oil smoke concentration. When the value of the oil smoke concentration variable is within the range of the preset value of the oil smoke concentration variable, executing step S37; when the value of the smoke concentration variable is not within the range of the preset value of the smoke concentration variable, step S38 is executed.
In an embodiment, the range of the preset oil smoke concentration variable value may be one range interval or a plurality of range intervals, and each range interval corresponds to one preset rotation speed value; of course, in other embodiments, a plurality of range intervals may correspond to one preset rotation speed value. Specifically, the correspondence between the interval range and the preset rotation speed value may be preset.
Specifically, the range corresponding to the variable value of the oil smoke concentration can be obtained by comparing the variable value of the oil smoke concentration with the range of the range.
In one embodiment, the range of the preset variable value of the oil smoke concentration may be three ranges, and specifically may be 0.2mg/m3－0.5mg/m3，0.5mg/m3－1mg/m3，1mg/m3－1.5mg/m3The present embodiment is only illustrative and not limited thereto.
Step S37: when the value of the oil smoke concentration variable is within the range of the preset value of the oil smoke concentration variable, the rotary filter screen is controlled to rotate at the preset rotating speed value corresponding to the range. When the value of the oil smoke concentration variable falls within the range of the preset value of the oil smoke concentration variable, the oil smoke concentration is indicated to require the filter screen to rotate at a corresponding rotating speed to filter the oil smoke, so that the oil smoke filtering effect is further improved.
In one embodiment, the value of the variation of the oil smoke concentration is detected to fall within the range c 1-c 2, and the rotation speed of the auxiliary motor for controlling the rotation of the rotary filter screen rotates at the corresponding rotation speed W1. Specifically, the concentration value of the oil smoke can be detected to fall into 0.2mg/m3－0.5mg/m3The rotation speed of the auxiliary motor corresponds to 50 watts of power corresponding to the range, and it should be noted that the larger the power of the auxiliary motor is, the faster the rotation speed is, and the power and the rotation speed have a positive correlation (for example, a direct ratio) relationship, so that the rotation speed of the rotary filter screen is intelligently adjusted.
Step S38: and when the value of the oil smoke concentration variable is not within the range of the value of the oil smoke concentration variable, controlling the rotary filter screen to keep the current rotating speed value, and returning to the step of obtaining the value of the oil smoke concentration increment. When the value of the oil smoke concentration variable does not fall into the range of the preset value of the oil smoke concentration variable, the current rotating speed value can meet the requirement of oil smoke filtration without changing the current rotating speed value.
According to the control method of the rotary filter screen, the rotating speed of the rotary filter screen is controlled and adjusted through the oil smoke concentration, and the control method is more intelligent, simpler and quicker.
In an alternative embodiment, as shown in fig. 4, when the starting parameter includes a mode signal for indicating whether the rotary filter screen enters the rotation speed adjusting mode, the step S2 specifically includes: and judging whether the mode signal indicates that the rotary filter screen is in a rotating speed adjusting mode.
The mode signal is used for indicating whether the rotary filter screen enters a rotating speed adjusting mode or not, so that the rotary filter screen can rotate only in the rotating speed adjusting mode, and the adjustment of the rotary filter screen is more flexible.
In an embodiment, the mode signal may be obtained by determining whether the on-off key and the air volume "+" combination key are pressed simultaneously, for example, an electrical signal obtained after the on-off key and the air volume "+" combination key are pressed simultaneously is used as a mode signal for the rotary filter screen to enter the rotation speed adjustment mode, and an electrical signal obtained in other cases (when the combination key is not pressed simultaneously) is used as a mode signal for not indicating that the rotary filter screen is in the rotation mode; specifically, the electrical signal obtained by simultaneously pressing the on-off key and the air volume "+" combination key is at a high level, the electrical signal obtained by non-simultaneously pressing the combination key is at a low level, and whether the rotary filter screen is in a rotating speed adjusting mode or not is indicated by judging the level of the electrical signal. Of course, in other embodiments, other types of signals may also be used, such as a voice signal or a gesture signal, and specifically, whether the voice signal is consistent with a pre-stored voice or whether the gesture signal is consistent with a pre-stored gesture may be determined. The present embodiment is only illustrative and not limited thereto.
In one embodiment, as shown in FIG. 4, the step S3 includes steps S39-S310 when the start parameter satisfies the predetermined condition.
Step S39: and acquiring a rotating speed adjusting signal of the rotary filter screen. Specifically, when the starting parameter meets the preset condition, the rotation of the rotary filter screen can be realized, and then the rotating speed of the rotary filter screen can be correspondingly adjusted by acquiring the rotating speed adjusting signal.
Step S310: and adjusting the rotating speed of the rotary filter screen according to the rotating speed adjusting signal. Different speed regulating signals correspond to different speeds. In one embodiment, if the rotation speed adjusting signal is to increase the rotation speed, the rotation speed of the rotary filter screen is increased; and if the rotating speed adjusting signal is that the rotating speed is reduced, the rotating speed of the rotary filter screen is reduced.
Specifically, the rotating speed of the auxiliary motor can be controlled and increased by pressing the air volume "+" again to obtain an electric signal, and the rotating speed of the rotary filter screen is increased accordingly; and the rotating speed of the auxiliary motor is controlled to be reduced by pressing the electric signal obtained by the air volume < - > again, and the rotating speed of the rotary filter screen is reduced accordingly. Of course, in other embodiments, the rotation speed adjustment signal may be other types of signals, such as a signal obtained by rotating the knob clockwise to increase the rotation speed of the auxiliary motor and a signal obtained by rotating the knob counterclockwise to decrease the rotation speed of the auxiliary motor. The present embodiment is only illustrative and not limited thereto.
According to the control method of the rotary filter screen, the rotation of the rotary filter screen is controlled through the mode signal, so that the control is more flexible and convenient, and the misoperation of the rotary filter screen can be prevented.
As shown in FIG. 5, steps S4-S5 are also included after step S3.
Step S4: and acquiring a rotating speed stop signal of the rotary filter screen. In one embodiment, the rotation speed stop signal may be an electrical signal generated when the on-off key and the air volume "+" combination key are pressed again at the same time; of course, in other embodiments, the rotation speed stop signal may be an electrical signal generated when the on-off key and the air volume "-" combination key are pressed simultaneously, and this embodiment is only schematically illustrated, and is not limited thereto.
Step S5: and controlling the rotary filter screen to stop rotating according to the rotating speed stop signal. And after receiving the rotating speed stop signal, the rotary filter screen stops rotating. Specifically, the rotation speed stop signal may be an electrical signal generated when the on-off key and the air volume "-" combination key are pressed simultaneously; of course, in other embodiments, the rotation speed stop signal may be a signal obtained by simultaneously pressing the air volume "+" and air volume "-" buttons, or may be a signal obtained by long-time pressing of the air volume "-" button; the present embodiment is only illustrative and not limited thereto.
In practical applications, a person skilled in the art may use any combination of the above startup parameters according to the description of the above embodiments, and the startup parameters may be combined with each other as long as there is no conflict between them, which is not limited by the embodiments of the present invention.
On the basis of the above-mentioned rotary filter screen control method, as shown in fig. 6, the control method further includes steps S6-S9.
Step S6: and acquiring the gas pressure value at the air inlet of the rotary filter screen. Specifically, the above-described gas pressure value may be acquired by a gas pressure sensor mounted on the rotating electric machine support. After the rotary filter screen is used for a period of time, the air quantity is changed due to the fact that the oil stains adhere to the meshes of the rotary filter screen, and the air pressure sensor can detect the change of the air pressure. Of course, in other embodiments, other devices for detecting the gas pressure may be used for detection, and the detection may be set reasonably according to actual conditions.
Step S7: judging whether the gas pressure value is greater than a preset gas pressure value or not; when the gas pressure value is greater than the preset gas pressure value, executing step S8; when the gas pressure value is less than or equal to the preset gas pressure value, step S9 is performed.
Step S8: and when the gas pressure value is greater than the preset gas pressure value, controlling the prompting device to send out prompting information. When the gas pressure value that detects exceeded and predetermine gas pressure value, it was too much to explain the filth of adhesion on the rotary filter screen, and the jam mesh leads to the amount of wind to reduce, and the rotary filter screen needs to be washd, then controls suggestion device and sends prompt message, reminds the user to wash.
In an embodiment, the preset gas pressure value is a specific gas pressure value, and the value can be set reasonably according to actual conditions, and this embodiment does not limit this.
In one embodiment, the prompting device can be a lamp flashing on the display panel, so that the prompting is simpler and more convenient; of course, in other embodiments, the prompting device may also be an audible and visual alarm or the like, and may be set reasonably as required.
Step S9: and when the gas pressure value is less than or equal to the preset gas pressure value, no action is executed. The gas pressure value at the air inlet of the rotary filter screen is less than or equal to the preset gas pressure value, which shows that the attached oil stain on the rotary filter screen is less, does not influence the air volume and the suction force of the rotary filter screen, and does not need to be cleaned.
According to the control method of the rotary filter screen, when oil stains adhered to the rotary filter screen are more, a user is prompted to clean the rotary filter screen in time, and a good oil smoke separation effect is guaranteed.
In the present embodiment, fig. 7 is an assembled exploded view of a specific example of the rotary filter net. As shown in fig. 7, the front panel 1 is fixedly installed on the surface of the smoke collecting hood 4, a round-corner rectangular smoke inlet is formed in the center of the smoke collecting hood, and the front panel 1 mainly plays a decorative role; the oil ring 3 is fixedly arranged on the fume collecting hood 4 through an oil ring bolt 2; oil smoke concentration sensor 13 fixed mounting is on motor mounting bracket 14, and gas pressure sensor 15 is also fixed mounting on motor mounting bracket 14, and auxiliary motor 5 fixed mounting is on another pressurized face of oil smoke concentration sensor 13, the auxiliary motor is double-shaft motor, and first rotary filter screen 6 is installed in the one end installation axle of auxiliary motor 5 through D shape shaft hole 61, and second rotary filter screen 7 is installed in the other end installation axle of auxiliary motor 5 through D shape shaft hole 71, and first rotary filter screen 6 and second rotary filter screen 7 follow auxiliary motor 5 synchronous revolution. The wind wheel 9 is fixedly arranged on an output shaft of the wind wheel motor 10 through a wind wheel nut 8, the wind wheel motor 10 is fixedly arranged inside the volute 11 through bolts, and the volute 11 is fixedly arranged on the rear shell 12 through bolts. A certain initial threshold value is set on the oil smoke concentration sensor 13 to detect the oil smoke concentration value at the air inlet of the rotary filter screen. It should be noted that, in the present embodiment, the oil smoke concentration value and the gas pressure value are obtained by a concentration sensor and a gas pressure sensor, respectively, in other embodiments, the oil smoke concentration value and the gas pressure value may be detected simultaneously by one detection device, that is, the detection device integrates an oil smoke concentration detection function and a gas pressure value detection function.
Fig. 8 is a perspective view of a specific example of the first rotary filter screen, and fig. 9 is a front view of fig. 8. As shown in fig. 8 and 9, 6 is the first rotary filter screen, 61 is the first D-shaped mounting shaft hole. Fig. 10 is a perspective view of a specific example of the first rotary filter screen, and fig. 11 is a front view of fig. 10. As shown in fig. 10 and 11, 7 is a second rotary filter screen, 71 is a second D-shaped mounting shaft hole. It should be noted that, in this embodiment, the structures of the first rotary filter screen 6 and the second rotary filter screen 7 are the same, and in other embodiments, the structures of the first rotary filter screen 6 and the second rotary filter screen 7 may also be different, and may be reasonably arranged as needed. The rotary filter screen can be arranged in other ways, such as a stepped shaft, a D-shaped shaft, a spline shaft and the like. The structure of the rotary filter screen is not limited to spoke shape or arc shape, and can also be other shapes such as silk screen, perforated plate, etc.
Fig. 12 is a diagram of a control method for rotation of a rotary filter screen, in which an oil smoke concentration sensor is disposed at an air inlet of the rotary filter screen to detect an oil smoke concentration value in a kitchen, and determine whether a user is boiling water, steaming steamed bread or cooking, and an auxiliary motor is controlled by a different cooking environment controller to drive the rotary filter screen to rotate. If the oil smoke concentration sensor sets an initial concentration value c0, when the oil smoke concentration c in a kitchen is detected to be more than or equal to c0, the cooking stage is judged, the controller receives the electric signal and controls the auxiliary motor 5 to drive the first rotary filter screen 6 and the second rotary filter screen 7 to rotate so as to perform efficient oil smoke separation; when the oil smoke concentration c in the kitchen is detected to be less than c0, the controller judges that water is being boiled or steamed bread (not cooking) is steamed, the controller receives the signal, the auxiliary motor 5 is controlled not to be started, the first rotary filter screen 6 and the second rotary filter screen 7 do not rotate, no oil smoke is generated at the stage, the components are mainly water vapor, the first rotary filter screen 6 and the second rotary filter screen 7 do not need to rotate to separate the oil smoke, the energy consumption is reduced, and the self-adaption kitchen environment is different in the kitchen. A preferred range of the initial concentration value c0 may be 0.5mg/m3－1.5mg/m3Preferably, the concentration may be 1.0mg/m3。
As an alternative embodiment, when the start parameter includes a mode signal for indicating whether the rotary filter screen enters the rotation speed adjustment mode, as shown in fig. 13, the electric signal obtained after the switch key and the air volume "+" combination key are pressed simultaneously may be used as the mode signal for the rotary filter screen entering the rotation speed adjustment mode.
In this embodiment, a rotating filter network control device is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device that has been already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Accordingly, referring to fig. 14, an embodiment of the present invention provides a rotary filter network control apparatus, including: a first obtaining module 901, a first judging module 902 and a first processing module 903.
A first obtaining module 901, configured to obtain a starting parameter for starting rotation of the rotary filter screen; the details are described with reference to step S1.
A first judging module 902, configured to judge whether the start parameter meets a preset condition; the details are described with reference to step S2.
The first processing module 903 is configured to control the rotary filter to rotate when the start parameter meets a preset condition, which is described in detail with reference to step S3.
In an embodiment, the starting parameter includes an oil smoke concentration value for representing an oil smoke size, and the first determining module includes: the first judging unit is used for judging whether the oil smoke concentration value is larger than a preset oil smoke concentration value.
In an embodiment, the start parameter includes an oil smoke concentration value for characterizing an oil smoke size, and the first processing module includes: and the first processing unit is used for controlling the rotary filter screen to rotate when the oil smoke concentration value is greater than a preset oil smoke concentration value.
In an embodiment, the starting parameter includes an oil smoke concentration value for characterizing an oil smoke size, and the first processing module further includes: a first obtaining unit, configured to obtain a soot concentration increment value of the soot concentration value when the soot concentration value is greater than the preset soot concentration value, where the details refer to the description in step S31; a second determining unit, configured to determine whether the soot concentration increment value is greater than the preset soot concentration increment value, where the detailed content refers to step S32; the second processing unit is configured to, when the oil smoke concentration increment value is greater than the preset oil smoke concentration increment value, control the rotary filter screen to increase the preset increment rotation speed value on the basis of the current rotation speed value, where the details refer to step S33; and a third processing unit, configured to control the rotary filter to maintain the current rotation speed value when the soot concentration increment value is smaller than or equal to the preset soot concentration increment value, and return to the step of obtaining the soot concentration increment value, where details are described with reference to step S34.
In another alternative embodiment, the start-up parameter comprises a soot concentration value for characterizing the soot size, the first processing module further comprising: a second obtaining unit, configured to obtain a value of an oil smoke concentration variable of the oil smoke concentration value, the details of which are described in reference to step S35; a third determining unit, configured to determine whether the value of the oil smoke concentration variable is within a range of a preset value of the oil smoke concentration variable, where details are described in reference to step S36; a fourth processing unit, configured to control the rotary filter to rotate at a preset rotation speed value corresponding to a preset range when the oil smoke concentration variable value is within the preset range of the oil smoke concentration variable value, where the details refer to step S37; and a fifth processing unit, configured to control the rotary filter to maintain the current rotation speed value when the oil smoke concentration variable value is not within the range of the preset oil smoke concentration variable value, and return to the step of obtaining the oil smoke concentration variable value, where details are described with reference to step S38.
In one embodiment, the start parameter includes a mode signal for indicating whether the rotary filter screen enters a rotation speed regulation mode, and the first determining module includes: and the fourth judging subunit is used for judging whether the mode signal indicates that the rotary filter screen is in a rotating speed adjusting mode.
In one embodiment, the start-up parameter includes a mode signal indicative of whether the rotary filter is in a speed regulation mode, and the first processing module includes: and the sixth processing unit is used for controlling the rotary filter screen to rotate when the mode signal indicates a rotating speed adjusting mode.
In one embodiment, the start parameter includes a mode signal for indicating whether the rotary filter screen enters a speed regulation mode, and the first processing module further includes: a third obtaining unit, configured to obtain a rotation speed stop signal of the rotary filter screen, the details of which are described in step S39; and a seventh processing unit, configured to control the rotary filter to stop rotating according to the rotation speed stop signal, which is described with reference to step S310 in detail.
In an embodiment, the rotary filter network control apparatus further includes: a second obtaining module, configured to obtain a rotation speed stop signal of the rotary filter screen, where details are described in reference to step S4; and a second processing module, configured to control the rotary filter to stop rotating according to the rotation speed stop signal, where details are described in reference to step S5.
In an embodiment, the rotary filter network control apparatus further includes: a third obtaining module, configured to obtain a gas pressure value at an air inlet of the rotary filter screen, where details are described in reference to step S6; a second determining module, configured to determine whether the gas pressure value is greater than a preset gas pressure value, where details refer to step S7; and a third processing module, configured to control the prompting device to send a prompting message when the gas pressure value is greater than the preset gas pressure value, where details are described with reference to step S8.
Further functional descriptions of the modules are the same as those of the method embodiments, and are not repeated herein.
An embodiment of the present invention further provides a range hood, as shown in fig. 15, including: a processor 101 and a memory 102; the processor 101 and the memory 102 may be connected by a bus or other means, and fig. 15 illustrates the connection by the bus as an example.
The processor 101 may be a Central Processing Unit (CPU). The Processor 101 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 102, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the rotary filter screen control method in the embodiment of the present invention (for example, the first obtaining module 901, the first determining module 902, and the first processing module 903 shown in fig. 14). The processor 101 executes various functional applications and data processing of the processor by running non-transitory software programs, instructions and modules stored in the memory 102, that is, the rotary filter screen control method in the above method embodiment is implemented.
The memory 102 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 101, and the like. Further, the memory 102 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 102 may optionally include memory located remotely from processor 101, which may be connected to processor 101 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 102 and, when executed by the processor 101, perform a rotary filter screen control method as in the embodiment of fig. 1-13.
The specific details of the server may be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 to 13, and are not described herein again.
Fig. 16 is a schematic view of another specific example of the range hood provided by the embodiment of the present invention. Fig. 17 is a front view of fig. 16, and fig. 18 is a side view of fig. 16. The front panel 1 is fixedly arranged on the surface of the smoke collecting hood 4, a round-corner rectangular smoke inlet hole is formed in the center of the smoke collecting hood, and the front panel 1 mainly plays a decorative role; the oil ring 3 is fixedly arranged on the fume collecting hood 4 through an oil ring bolt 2; the auxiliary motor 5 is installed on a motor installation frame on the smoke collecting hood through screws, the first rotary filter screen 6 is installed on an installation shaft at one end of the auxiliary motor 5 through a D-shaped shaft hole 61, and the second rotary filter screen 7 is installed on an installation shaft at the other end of the auxiliary motor 5 through a D-shaped shaft hole 71; the wind wheel 9 is fixedly arranged on an output shaft of the wind wheel motor 10 through a wind wheel nut 8, the wind wheel motor 10 is fixedly arranged inside the volute 11 through bolts, and the volute 11 is fixedly arranged on the rear shell 12 through bolts.
The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer instruction, and the computer instruction is used to enable the computer to execute any one of the above-mentioned rotating filter screen control methods. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A rotary filter screen control method is characterized by comprising the following steps:
acquiring starting parameters for starting the rotation of the rotary filter screen;
judging whether the starting parameters meet preset conditions or not;
when the starting parameters meet the preset conditions, controlling the rotary filter screen to rotate;
the starting parameters comprise mode signals for representing whether the rotary filter screen enters a rotating speed adjusting mode or not, and the mode signals are obtained by judging whether an on-off key and an air volume '+' combination key are pressed simultaneously or not; judging whether the starting parameters meet preset conditions comprises the following steps:
judging whether the mode signal indicates that the rotary filter screen is in a rotating speed adjusting mode or not;
when the starting parameter satisfies the preset condition, controlling the rotary filter screen to rotate comprises:
when the mode signal indicates a rotating speed adjusting mode, controlling the rotary filter screen to rotate;
after the step of controlling the rotation of the rotary filter screen, the method further comprises the following steps:
acquiring a rotating speed adjusting signal of the rotary filter screen;
adjusting the rotating speed of the rotary filter screen according to the rotating speed adjusting signal, comprising:
judging whether the air volume "+" or the air volume "-" is pressed again, and increasing the rotating speed of the rotary filter screen when the air volume "+" is pressed again;
and when the air volume is pressed down again, reducing the rotating speed of the rotary filter screen.
2. The rotary filter screen control method according to claim 1, wherein the starting parameter includes an oil smoke concentration value for representing the size of oil smoke, and the determining whether the starting parameter satisfies a preset condition includes:
and judging whether the oil smoke concentration value is larger than a preset oil smoke concentration value.
3. The rotary filter screen control method according to claim 2, wherein when the start parameter satisfies the preset condition, controlling the rotary filter screen to rotate comprises:
and when the oil smoke concentration value is greater than a preset oil smoke concentration value, controlling the rotary filter screen to rotate.
4. The method for controlling the rotary filter screen according to claim 3, further comprising, after the step of controlling the rotation of the rotary filter screen when the starting parameter satisfies the preset condition:
acquiring a lampblack concentration increment value of the lampblack concentration value;
judging whether the oil smoke concentration increment value is larger than a preset oil smoke concentration increment value or not;
when the oil smoke concentration increment value is larger than the preset oil smoke concentration increment value, controlling the rotary filter screen to increase a preset increment rotating speed value on the basis of the current rotating speed value;
and when the oil smoke concentration increment value is smaller than or equal to the preset oil smoke concentration increment value, controlling the rotary filter screen to keep the current rotating speed value, and returning to the step of obtaining the oil smoke concentration increment value.
5. The method for controlling the rotary filter screen according to claim 3, further comprising, after the step of controlling the rotation of the rotary filter screen when the starting parameter satisfies the preset condition:
acquiring an oil smoke concentration variable value of an oil smoke concentration value;
judging whether the oil smoke concentration variable value is within the range of a preset oil smoke concentration variable value;
when the oil smoke concentration variable value is within the range of the preset oil smoke concentration variable value, controlling the rotary filter screen to rotate at a preset rotating speed value corresponding to the range;
and when the value of the oil smoke concentration variable is not within the range of the preset value of the oil smoke concentration variable, controlling the rotary filter screen to keep the current rotating speed value, and returning to the step of obtaining the value of the oil smoke concentration variable.
6. The rotary filter screen control method according to claim 1, further comprising, after the step of controlling the rotation of the rotary filter screen:
acquiring a rotating speed stop signal of the rotary filter screen;
and controlling the rotary filter screen to stop rotating according to the rotating speed stop signal.
7. The rotary filter screen control method according to any one of claims 1 to 6, further comprising:
acquiring a gas pressure value at an air inlet of the rotary filter screen;
judging whether the gas pressure value is larger than a preset gas pressure value or not;
and when the gas pressure value is greater than the preset gas pressure value, controlling a prompting device to send out prompting information.
8. A rotary filter screen control apparatus, comprising:
the first acquisition module is used for acquiring starting parameters for starting the rotation of the rotary filter screen;
the first judgment module is used for judging whether the starting parameters meet preset conditions or not;
the first processing module is used for controlling the rotary filter screen to rotate when the starting parameter meets the preset condition;
the starting parameters comprise mode signals for representing whether the rotary filter screen enters a rotating speed adjusting mode or not, and the mode signals are obtained by judging whether an on-off key and an air volume '+' combination key are pressed simultaneously or not; the first judging module is specifically configured to:
judging whether the mode signal indicates that the rotary filter screen is in a rotating speed adjusting mode or not;
the first processing module is specifically configured to:
when the mode signal indicates a rotating speed adjusting mode, controlling the rotary filter screen to rotate;
after the step of controlling the rotation of the rotary filter screen, the method further comprises the following steps:
acquiring a rotating speed adjusting signal of the rotary filter screen;
adjusting the rotating speed of the rotary filter screen according to the rotating speed adjusting signal, comprising:
judging whether the air volume "+" or the air volume "-" is pressed again, and increasing the rotating speed of the rotary filter screen when the air volume "+" is pressed again; and when the air volume is pressed down again, reducing the rotating speed of the rotary filter screen.
9. A range hood, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the rotary screen control method of any one of claims 1-7.
10. A computer-readable storage medium storing computer instructions for causing a computer to perform the rotary screen control method of any one of claims 1-7.
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| CN110375344B (en) * | 2019-06-14 | 2021-01-15 | 宁波方太厨具有限公司 | Building flue kitchen oil fume purification system and control method |
| CN111102627A (en) * | 2020-01-20 | 2020-05-05 | 嵊州市华昊电机制造有限公司 | Smoke exhaust ventilator with unpowered oil smoke separation net |
| CN113551271A (en) * | 2020-04-24 | 2021-10-26 | 青岛海尔智能技术研发有限公司 | Method and device for controlling range hood and range hood |
| CN111609443A (en) * | 2020-04-24 | 2020-09-01 | 青岛海尔智慧厨房电器有限公司 | Control method of oil fume suction and discharge device, oil fume suction and discharge device and equipment |
| CN113551278A (en) * | 2020-04-24 | 2021-10-26 | 青岛海尔智能技术研发有限公司 | Method and device for controlling range hood and range hood |
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| CN109237572A (en) * | 2018-10-16 | 2019-01-18 | 珠海格力电器股份有限公司 | Oil fume purification device, oil fume extraction equipment and oil fume purification method |
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